Berkeley Municipal Code Ch. 19.32 Berkeley Mechanical Code

The California Mechanical Code, 2025 Edition, as adopted in Title 24 Part 4 of the California Code of Regulations, is hereby adopted and made a part of this Chapter as though fully set forth herein, subject to the modifications thereto which are set forth in this Chapter. A copy of this Code is on file for use and examination by the public in the office of the City Clerk of the City of Berkeley. (Ord. 7988-NS § 4, 2025)

This Code shall be known as the "Berkeley Mechanical Code" and may be cited as "this Code". (Ord. 7988-NS § 4, 2025)

All of the administrative provisions contained in Article 1 of Chapter 19.28, the Berkeley Building Code, shall apply to this Code as well and take precedence over any California Mechanical Code administrative provisions that may conflict. (Ord. 7988-NS § 4, 2025)

Chapter 4 of the 2025 California Mechanical Code is adopted in its entirety subject to the modifications thereto which are set forth below:

405.4.1 Exhaust Rate. For intermittent-controlled operations, the exhaust rate shall be not less than 100 ft3/min (47.2 L/s) for range hoods or 300 ft3/min (142 L/s) for mechanical exhaust fans and shall be rated for sound at a maximum of 3 sone at greater than or equal to 100 ft3/min (47.2 L/s), including downdraft appliances. For continuous operated ventilation, the exhaust rate shall be not less than 50 ft3/min (23.6 L/s) and shall be rated for sound at a maximum of 1.0 sone.

Exception: A vented range hood shall not be required in dwelling unit kitchens equipped with a local mechanical exhaust system installed in accordance with ASHRAE 62.2.

(Ord. 7988-NS § 4, 2025)